# CRC

Graeme Smith (grysmith@freenet.edmonton.ab.ca)
Tue, 13 Feb 1996 07:15:42 PST

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    It doesn't have to be unique. it is just an error detection system.

    All you want to do is put a marker at the end of the string, that will
    be sufficiently different if a common error happens, to indicate that
    the string/file/whatever, is no longer correct.

    Error Recovery is NOT part of CRC.

    Isn't a crc something like a checksum?

    				Grey

    GRAEME SMITH                         email: grysmith@freenet.edmonton.ab.ca
    2536 138A ave Edmonton

    On Tue, 13 Feb 1996, Richard Connamacher wrote:

    > > Cyclical Redundancy Check, I believe.  It generates a 'signature' for a chunk
    > > of data that can be used to easily check whether two large chunks of data are
    > > the same.
    >
    > Hrm..  how accurate is it?  I would imagine that whever you take a large chunk
    > of data and compress it into a tiny signature, it would be possible for two
    > different sets of data, or more, to have the same signature.  I assume it's much
    > faster than checking if the data itself is identical on both sides of the
    > connection :)
    >
    > Phantom
    >